How to switch from a classic GMC feed to a Pro one ?

Prepare the migration before replacing your current Merchant Center source. Different offer IDs may be treated as new products and interrupt their reporting continuity.

  1. Keep the standard module settings and a feed copy: language, country or feed label, currency, product/combination mode, prefix and ID construction.
  2. Install and configure PRO. Its configuration import can reuse settings from the standard module; check every section after importing.
  3. Generate a PRO feed for comparison. Check g:id, combinations, URLs, prices and availability for several offers against the old feed. Retain the same ID mode: switching to EANs or references changes offer identity.
  4. Under Merchant Center → Settings → Data sources, find the relevant product source and scheduled retrieval. Switch its URL or replace the source using the options available in your account, retaining targeting and IDs. Avoid concurrent sources for the same offers.
  5. Check processing and diagnostics before permanently removing the old generation setup and CRON tasks. Validation does not guarantee an immediate, interruption-free migration.

After switching, configure the additional features you need separately: promotions, product ratings, advanced custom labels and advanced exclusions. Keep a configuration backup so you can restore the previous feed if verification fails.

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